Seaming mechanism



J. PEYSER.

SEAMING MECHANISM.

APPLICATION FILED MAR; 30. I918. RENEWED AUG. 8.1921.

Patented Mar. 7, 1922.

3 SHEETSSHEET I.

. mfimq umfii Inventor:

Atty

J. PEYSER.

SEAMING MECHANISM. APPLICATION FILED MAR, 30. I918- RENEWED AUG.'8.1921.

1,408,71 3. Patented Mar- 7, 1922'.

3 SHEETS-SHEET Z.

J. PEYSER.

SEAMING MECHANISM. APPLICATION 11150111111130. 19111. RENEWED AUG.8.1921.

1 08,? 1 3. Patented Mar. 1922.

3 SHtETS-SHEET 3.

Inventor.-

UNITED STATES PATENT OFFICE.

JOSEPH PEYSER.'OF MOUNT VERNON, NEW YORK, ASSIGNOR, BY MZESNE ASSIGN-MENTS, TO ACKERMANN MANUFACTURING COMPANY, OF WHEELING, WEST VIRGINIA, ACORPORATION OF WEST VIRGINIA.

SEAMING MECHANISM.

To a]! whom. it may concern:

Be it known that I, J osnrn PEYsnR, a oiti-- zen of the United States,and a resident of Mount Vernon, county of Westchester, and State of NewYork, have invented certain new and useful Improvements in seamingMechanism, of which the following is a specification.

The present invention relates generally to canseaming machines and hasfor its main object the automatic feeding and positioning of covers forapplication to cans that are placed manually upon the plunger orsupporting means of an intermittentlyoperated one-cycle machine.

Another object of the invention is to render the general design of themachine more compact so that all the operating parts may be enclosed orcontained within a casing.

To this end, the invention consists in a machine of the characterdescribed having normally inactive actuating means for clamping andseaming which, when rendered active, operate for one cycle of themachine and then stop, together with automatic means for positioning acover, in line with a can 011 the supporting means, once during eachcycle of operation of the actuating means.

Another feature of the invention resides' in a general arrangement ofthe parts whereby the plunger-lifting cam is carried on a sleeve thatrevolves the seaming cam and thereby obviates the necessity of a countershaft and gearing for the same.

In the accompanying drawings there is shown a typical or illustrativeembodiment of one concrete and preferred form of the invention, inwhich:

Figure l is a general side elevation, partly in section, with the uppercasing broken away to expose the gearing of the machine.

Figure 2 is a front view of part of Fig. 1, looking in the direction ofthe arrow 2, also with some of the parts in section.

Figure 3 is a horizontal sectional View on the line 33 of Fig. 2.

Figure 4 is a transverse sectional View on the line 44 of Fig. 3.

Figure 5 is a diagrammatic view showing the development of theplunger-lifting cam.

In the machine here chosen for illustration, suitable clamping means areemployed that consist of a plunger 1 and a chuck 2.

Specification of Letters Patent.

Patented Mar. 7, 1922. Renewed August 8, 1921. Serial No. 490,781.

The seaming means 3 may be of any desired construction and is hererepresented as being of the same form as that shown in Fi 3 of myapplication, Ser. No. 180,270, led July 13, 1917, in which two seamingrollers diametrically opposed to each other, are use as the seamingtools, being mounted on a carrying member 4 that is pivotally supportedand to which a swinging movement is imparted by means of rollers, suchas 5,

. engaging with a seaming cam 6. This seaming cam 6 is mounted on a camsleeve 7 to which is imparted a single revolution during each cycle ofoperation of the machine while chuck 2 is given a continuous rotarymotion at a relatively high speed in such manner that, when plunger 1 iselevated to bring the can and cover into engagement with said chuck,said cam is rotated while the seaming tools are moved in and out in amanner understood by those skilled in the art. A rotary motion isimparted to a shaft 8 that carries chuck 2 by means of bevel gears 9 and10, the latter being mounted on ashaft 11 that receives its motion, bymeans of spur gears 12, from a power shaft 13. This power shaft 13 isprovided with a worm 14 meshing with a worm gear 15 having a hub 16loosely mounted on shaft 8. Slidably mounted on cam sleeve 7, androtatable in unison therewith, is a member 17 which is, in effect, aclutch provided with teeth 18 that correspond to similar teeth on hub 16so that, when sleeve 17 is moved into engagement with hub 16, the motionof shaft imparted to cam sleeve 7. The controllin means for effectingmovement of sleeve 17 during one revolution, and for thereafter causingits rotation to cease may, of course,

take many forms but, in the present instance,

I mount a cam 19 fast on sleeve 7. 2O indicates a pivot on which ismounted an arm 21 having a roller 22 engaging with cam 19 and alsohaving an extension 23 engaging in a groove 24 of the sliding member 17.The arm 21 is connected by means of link 25 to an upright rod 26 which,in turn, is suitably connected to a treadle 27 and from which extendsalso a connection 28 pivotally supported at 29 and engaging with one arm30 the plunger 1. Upon depression of treadle 27, a can havin previouslybeen placed in position on said plunger, the upright rod 26 is depressedpart Way, thereby elevating plunger 1 slightly and also lifting roller22 out of the stop groove 31 of cam 19 and, at

- the same time, sliding sleeve 17 into clutch and said engagement withthe worm wheel 15. This transmits the motion from shaft 13 to cam sleeve7 and causes one revolution of said sleeve. During the first part ofsaid revolution, roller 22 travels over the surface 32 of cam 19 andthen rises up the incline 33 to the high portion 34 of the cam. Whenthis occurs, motion is transmitted back through lever 21, link 25,connecting rod 26, lever 28 and arm 30 to plunger 1 which is now raisedall the way up thereby clamping the can and cover securely between saidplunger and chuck. The timing of the seaming cam is of such character tat the seaming tools now move in, one at a time, toward the can andcover and perform the seaming operation in a well understood manner.lontinued rotation of sleeve 7 eventually brings roller 22 from the highpoint 34 of cam 19 to the notch or depression 31, thereby moving thesliding member 17 out of clutching engagement with worm wheel 15 andarresting rotation of cam sleeve 7, said rolle r 22 depression 31forming a positlve stop.

In machines of this character heretofore it has generally been customaryfor the operator to place both the can and cover in position on theplunger after whlch the seaming operation was effected. The contents ofthe can being very hot necessitates the use of thick and cumbersomegloves on th hands of the operator. These unwieldly glovesmake itparticularly difficult for the operator to handle a light and smallcover and to place it accurately on the can, as will readily beunderstood. Therefore, I have provided means by which it is onlynecessary for the operator to place a can upon the plunger and start themachlne in operation, automatic means being prov ded for feeding a coverfrom a magazine into position on the can that has been placed on theplunger. In the present instance, these means take the following form.35 indicates a bracket carried by the machine and provided with a grooveor dove-tail portion 36, as shown, in which reciprocates a slide 37having a knife 38. Suitable means are provided for effecting ,ato-and-fro movement of this slide, in the present instance taking theform of an eccentric 39 that may be conveniently carried by cam sleeve7. In Fig. 3, this eccentric is shown in lines of dots and dashes sincethe section is taken on the line 33 indicated in Fig. 2; and theeccentric is in a plane above the point where the section is taken, aswill be Seen in Fig. 1. Connected to this eccentric 39 is an arm 40secured to a bell crank 41 pivotally supported at 42 and connected bymeans of a link 43 to an oscillating lever 44 pivotally supported at 45.At its outer free end, lever 44 carries a pin 46 extending up through aslot 47 in bracket 35 and connected to slider 37. Carried by bracket 35and located adjacent to chuck 2 is a cover magazine 48 in which aplurality of covers 49 are superposed on each other. When the parts arein the position shown in Figs. 2 and 3, the lowermost cover 49 will havedropped down on the surface 50 of bracket 35 and will be below thehopper proper with the knife 38 behind it, the upper surface of saidknife being in line with the lower part of the hopper and acting, duringwhat may be called the forward reciprocation, to cut off the nextsuperimposed. cover. During such forward movement of slider 37, thesurface 51 of said slider will hold the next cover in position and keepit from falling down. As the cover advances toward the can on plunger 1,it will be carried by slider 37 and edgewise displacement of the coverwill be prevented by reason of flanges 52 until it is brought intoposition in line with head 53 directly on the can on plunger 1 and inline with chuck 2. The can now being elevated, the cover will be pressedinto proper relation with the can and the seaming operation may takeplace. The eccentric 39 and the parts connected with it are so timed andso related that, at the beginning of a cycle of the machine and whilethe roller 22 is traveling on the surface 32 of cam 19, a cover is movedfrom an intermediate position, indicated in dotted line 54, directlyinto line with the can on plunger 1, the arm 44 occupying, at thebeginning of the cycle, substantially the position indicated in dottedlines at 55 and then initially moving to the right in Fig. 3. Th arm 44then returns until the knife 38 occupies approximately the positionshown in Fig. 2 after which the arm moves forward again to bring a coverfrom the magazine into intermediate position and, when it reaches thatposition, one cycle of operation has been completed and operation of themachine ceases until it is again actuated by depression of treadle 27 bythe operator.

I claim:

1. An intermittently-operating one-cycle seaming machine comprising: achuck, a plunger in line with the chuck, a seaming member, a shaftcarrying the chuck and making a plurality of revolutions during eachcycle of operation of the machine, means for rotating the shaftcontinuously, a rotatable sleeve surrounding the shaft and making onerevolution during each cycle of operation of the machine, aplunger-lifting cam and a seaming cam both mounted on the rotatablesleeve, means for actuating the sleeve, connections from theplunger-lifting cam,to the plunger including a clutch element forconnecting and disconnecting the sleeve from its actuating means, meansfor positioning a cover in l1ne with the can on the plunger, an actuatinmember for said positioning means carrie by the sleeve, and

connections from said actuating member to said positioning means. a

2. An intermittently-operating one-cycle seaming machine comprising: achuck, a

plunger in line with the chuck, a seaming member, a shaft carrying thechuck and making a plurality of revolutions during each cycle ofoperation of the machine, means for rotating the shaft continuously, arotatable sleeve surrounding the shaft and making one revolution duringeach cycle of operation of the machine, a plunger-lifting cam and aseaming cam both mounted on the.

rotatable sleeve, means for actuating the sleeve,

connections from the plunger-lifting cam to the plunger including aclutch -ele'- ment for connecting and disconnecting the sleeve from itsactuatln means, means for positioning a cover in line with the can onnections from said eccentric to said positioning means.

mg means carried by the sleeve, and con- 1 3. An'intermittently-operating one-cycle seaming machine comprising: cansupporting and clamping means, seaming means, normally inactiveactuating means for said two means, which, when rendered active, operatefor one cycle of the machine and then stop, a cover magazine adjacentthe supporting and clamping means, and automatic means having ato-and-fro movement for transferring during each cycle of the machineone cover from a position intermediate the magazine and supporting meansto a position in line with a can on thesupporting means and fortransferring another cover from the magazine to the Intermediateposition. I

Signed at Mount Vernon, in the county of Westchester, and State of NewYork, this 25th day of March 1918. I

JOSEPH PEYSER.

